261 lines
10 KiB
Python
261 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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# *****************************************************************************
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc.,
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# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# Module authors:
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# Markus Zolliker <markus.zolliker@psi.ch>
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#
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# *****************************************************************************
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import sys
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import os
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from glob import glob
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from os.path import join, isdir, basename, expanduser, exists
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from configparser import ConfigParser
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from .base import ServiceManager, ServiceDown, UsageError
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from .seaman import SeaManager
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def dummy(*args, **kwds):
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pass
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class Node:
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description = ''
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def __call__(self, equipment_id, description, *args, **kwds):
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self.description = description
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class FrappyManager(ServiceManager):
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group = 'frappy'
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services = ('main', 'stick', 'addons')
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USAGE = """
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Usage:
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frappy list [instance] *
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frappy start <instance> <service> <cfgfiles>
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frappy restart <instance> [<service>] [<cfgfiles>] *
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frappy stop <instance> [<service>] *
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frappy listcfg <instance> [<service> | develop] # list available cfg files
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<service> is one of main, stick, addons
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%s
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* wildcards allowed, using '.' to replace 0 or more arbitrary characters in <instance>
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"""
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def config_dirs(self, ins, service):
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cfgpaths = []
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cfgparser = ConfigParser()
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cfgparser.optionxform = str
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cfgfile = self.env[ins].get('FRAPPY_CONFIG_FILE')
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confdir = self.env[ins].get('FRAPPY_CONFDIR')
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if cfgfile:
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cfgfile = self.env[ins]['FRAPPY_CONFIG_FILE'].replace('<SERV>', service)
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cfgparser.read(cfgfile)
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try:
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section = cfgparser['FRAPPY']
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except KeyError:
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raise ValueError('%s does not exist or has no FRAPPY section' % cfgfile)
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confdir = section.get('confdir', confdir)
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for cfgpath in confdir.split(os.pathsep):
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if cfgpath.endswith('<SERV>'):
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cfgpaths.append(expanduser(cfgpath[:-6] + service))
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else:
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scfg = join(cfgpath, service)
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if isdir(scfg):
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cfgpaths.append(scfg)
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cfgpaths.append(expanduser(cfgpath))
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return cfgpaths
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def prepare_start(self, ins, service, cfg=''):
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start_dir, env = super().prepare_start(ins, service)
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for key, value in env.items():
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if '<SERV>' in value:
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env[key] = value.replace('<SERV>', service)
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os.environ[key] = env[key]
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cfgpaths = self.config_dirs(ins, service)
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if cfgpaths:
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env['FRAPPY_CONFDIR'] = os.pathsep.join(cfgpaths)
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# merge PYTHONPATH from servicemanager.cfg with the one from environment
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pypathlist = []
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for pypath in env.get('PYTHONPATH'), os.environ.get('PYTHONPATH'):
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if pypath is not None:
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pypathlist.extend(p for p in pypath.split(':') if p not in pypathlist)
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if pypathlist:
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env['PYTHONPATH'] = os.environ['PYTHONPATH'] = ':'.join(pypathlist)
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return start_dir, env
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def do_start(self, ins, service=None, cfg='', restart=False, wait=False, logger=None):
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if self.wildcard(ins) is not None:
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raise UsageError('no wildcards allowed with %s start' % self.group)
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if cfg and not service and len(self.services) != 1:
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raise UsageError('need service to start (one of %s)' % ', '.join(self.services))
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super().do_start(ins, service, cfg, restart, wait, logger)
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def do_restart(self, ins, service=None, cfg=None, logger=None):
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ins_list = super().do_restart(ins, service, cfg, logger)
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if ins_list: # wildcard used
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# determine running processes with cfg
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cfginfo = {}
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self.get_procs(None, cfginfo)
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cfgs = {i for i, s in cfginfo if s == service or service is None}
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return [i for i in ins_list if i in cfgs]
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def get_nodes(self, ins='', service=None):
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start_dir = ServiceManager.prepare_start(self, ins, None)[0]
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if start_dir not in sys.path:
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sys.path.insert(0, start_dir)
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nodes = []
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services = self.services if service is None else [service]
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for service in services:
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try:
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self.check_running(ins, service)
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nodes.append('localhost:%d' % self.info[ins][service])
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except ServiceDown:
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if len(services) == 1:
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raise UsageError('frappy %s %s is not running' % (ins, service))
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except KeyError:
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if ins:
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raise UsageError('unknown instance %s' % ins)
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raise UsageError('missing instance')
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if not nodes:
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raise UsageError(f"frappy {ins}: none of {'/'.join(services)} is running")
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return nodes
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def do_gui(self, ins='', service=None):
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print(f'starting frappy gui {ins} {service or ""}')
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nodes = self.get_nodes(ins, service)
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import logging
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from frappy.gui.qt import QApplication
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from frappy.gui.mainwindow import MainWindow
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app = QApplication([])
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win = MainWindow(nodes, logging.getLogger('gui'))
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win.show()
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return app.exec_()
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def do_cli(self, ins='', service=None):
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nodes = self.get_nodes(ins, service)
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from frappy.client.interactive import init, interact
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init(*nodes)
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interact()
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def all_cfg(self, ins, service, details=False):
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"""get available cfg files
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:param ins: instance
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:param service: service nor None for all services
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:param details:
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True: return a dict of <cfgdir> of <cfg> of <description>
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False: return a set of <cfg>
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"""
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result = {}
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all_cfg = set()
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if not ins:
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return {}
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namespace = {k: dummy for k in ('Mod', 'Param', 'Command', 'Group')}
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namespace['Node'] = node = Node()
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for service in [service] if service else self.services:
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for cfgdir in self.config_dirs(ins, service):
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result.setdefault(cfgdir, {})
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cfgs = result[cfgdir]
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root = self.env[ins].get('FRAPPY_ROOT')
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cfg_pattern ='*_cfg.py' if exists(join(root, 'frappy')) else '*.cfg'
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for cfgfile in glob(join(cfgdir, cfg_pattern)):
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desc = ''
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if details:
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try:
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if cfgfile.endswith('.py'):
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node.description = ''
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try:
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with open(cfgfile, encoding='utf-8') as f:
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exec(f.read(), namespace)
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except Exception as e:
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node.description = repr(e)
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desc = node.description
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else:
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parser = ConfigParser()
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parser.read(cfgfile)
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for s in parser.sections():
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if s == 'NODE' or s.startswith('node '):
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desc = parser[s].get('description', '').split('\n')[0]
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break
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except Exception:
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pass
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cfg = basename(cfgfile)[:1-len(cfg_pattern)]
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if cfg not in all_cfg:
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all_cfg.add(cfg)
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cfgs[cfg] = desc
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return result if details else all_cfg
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def do_listcfg(self, ins='', service='', prt=print):
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if not ins:
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raise UsageError('missing instance')
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if service:
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all_cfg = self.all_cfg(ins, service, True)
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else:
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all_cfg = {}
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for service in self.services:
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all_cfg.update(self.all_cfg(ins, service, True))
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for cfgdir, cfgs in all_cfg.items():
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if cfgs:
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prt('')
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prt('--- %s:' % cfgdir)
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keylen = max(len(k) for k in cfgs)
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for cfg, desc in cfgs.items():
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prt('%s %s' % (cfg.ljust(keylen), desc))
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def treat_args(self, argdict, unknown=(), extra=()):
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if len(unknown) == 1:
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cfg = unknown[0]
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if cfg == 'develop':
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argdict['service'] = cfg
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return super().treat_args(argdict, (), ())
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if (',' in cfg or cfg.endswith('.cfg') or
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cfg in self.all_cfg(argdict.get('ins'), argdict.get('service'))):
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return super().treat_args(argdict, (), unknown)
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return super().treat_args(argdict, unknown, extra)
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def cfg_from_sea(self, ins):
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sea = SeaManager()
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sea.get_info()
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cfgs, confirmed = sea.get_cfg(ins, 'sea', True)
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cfgs = cfgs.split('/')
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result = {}
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def check_cfg_file(cfg, allcfg):
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if cfg is 'none':
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return ''
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return cfg if cfg in allcfg else cfg + '?'
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allmain = self.all_cfg(ins, 'main')
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allsticks = self.all_cfg(ins, 'stick')
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if cfgs[0]:
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result['main'] = check_cfg_file(cfgs[0], allmain)
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if len(cfgs) > 1:
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stick = cfgs[1]
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if stick:
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if stick not in allsticks and stick in allmain:
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stick += 'stick'
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result['stick'] = check_cfg_file(stick, allsticks)
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addons = [check_cfg_file(a) for a in cfgs[2:]]
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if addons:
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result['addons'] = ','.join(addons)
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result['confirmed'] = confirmed
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return result
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